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. 2010 May 5;95(7):3360–3367. doi: 10.1210/jc.2010-0293

Figure 3.

Figure 3

Concordance of measurement. A, IA-2A measured in Bristol (abscissa) and Denver (ordinate axis) using the harmonized assay in 500 samples from the DASP blood donor control set (open diamonds) and 50 samples from patients with recent onset type 1 diabetes (filled squares). Thresholds of 5 DK units/ml are indicated for both laboratories, and the number of samples falling in each quadrant are indicated. B, GADA measured in Bristol (abscissa) and Denver (ordinate axis) using the harmonized assay in 974 samples representing 500 controls from the DASP blood donor control set and a second set of adult control samples (open diamonds) and 100 samples from patients with recent onset type 1 diabetes (filled diamonds). Thresholds representing the 97th percentile of the control samples are indicated for both laboratories, and the number of samples falling in each quadrant are indicated.